Heavy Duty Balanced Opposed Compressors - Ariel Corporation

Section 2 - Instrumentation For Models: JGH:E:K:T
Proflo Jr. No-Flow Switch
CAUTION: See arc welding caution at the beginning of this chapter.
Proflo Jr. Installation
CAUTION: Explosion hazard - no user serviceable parts. Do not disconnect wiring while
circuit is live. Complete all field wiring in accordance with local codes pertaining to
potentially explosive atmospheres. Do not open battery compartment in areas known to
contain explosive gases.
1. Loosen the two Allen head set
screws on top of Proflo Jr. case
and remove magnet housing.
Do not remove magnet, spring,
and spacer from magnet housing.
2. Remove piston end plug from
desired divider valve. The Proflo
Jr. installs on either side of
any divider valve, but requires
the correct magnet housing for
each divider valve manufacturer
(Trabon, Dropsa, etc.).
NOTE: Do not install the Proflo
Jr. on any divider valves
with cycle indicator pins.
3. Verify O-ring is in place on magnet
housing. Thread magnet
housing into end of divider
valve. Torque magnet housing
to 15 foot-pounds max.
1. Magnet Housing
2. O-Ring
3. Allen Head Set
Screw (2)
4. Proflo Jr. Case
4. Slide Proflo Jr. all the way onto magnet housing. Torque Allen head set screws to 15 inch-pounds
max. DO NOT over tighten set screws.
5. The LED on the Proflo Jr. indicates one complete cycle of the divider valve system. Verify correct
operation by pumping oil through the divider valve assembly. The force feed lubricator data plate
on the lubricator box indicates either normal and break-in cycle times at maximum rated speed,
or normal cycle time for applied speed. Use break-in cycle times only for the first 200 hours of
operation before changing to the normal cycle time. If unable to determine cycle time, contact the
Ariel Response Center.
6. For Lincoln divider valves it may be necessary to adjust the Proflo Jr. by sliding it back about 1/8”
on the magnet housing until the LED flashes. All conduit and connections should be appropriate
for area classification. Use flexible conduit to ease installation. Support conduit and fittings to
minimize vibration.
7. After Proflo Jr. installation or performance of any maintenance on the lube system, compressor
cylinders, or packing, pre-lube the complete system with a purge gun to purge air from the
divider valves and all components BEFORE COMPRESSOR START-UP.
PAGE 2-6 3/11
12S
12T
1 2 3 4
13
14
5
5. LED
6. Red Wire Leads (2)
7. Orange Wire Leads (2)
8. Yellow Wire Leads (2)
9. Green Wire Lead (1)
12 11
FIGURE 2-4 Proflo Jr. Installation
10. Battery Plug
11. Grounding Lug
12. Battery
13. Divider Valve
14. End Plug
6
7
8
9
10